the mordant in the gram stain procedure is
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Nursing Elites

NCLEX-RN

NCLEX RN Predictor Exam

1. In the Gram Stain procedure, which component acts as the mordant?

Correct answer: C

Rationale: In the Gram Stain procedure, the mordant is Gram's Iodine. The purpose of the mordant is to form a complex with the crystal violet, enhancing its ability to bind to the cell wall. Crystal violet is actually the primary stain used in the Gram Stain procedure to initially color all cells. Methyl alcohol is the decolorizer that removes the crystal violet from certain cell types. Safranin is the counterstain used to stain those cells that did not retain the crystal violet stain after the decolorization step.

2. A patient has a goal of eating at least 50% of each meal. The patient refuses to eat, so a nurse force-feeds the patient in order for them to reach their goal of eating at least 50% of the meal. The nurse has committed __________ against this patient.

Correct answer: B

Rationale: The correct answer is 'battery.' Battery occurs when there is unwanted physical contact or force applied to a person without their consent. In this scenario, force-feeding the patient against their will constitutes battery as the nurse is physically interfering with the patient's body without permission. Assault involves the threat of physical harm, which is not present in the situation described. Physical neglect refers to the failure to provide basic care needs, which is not the case here. Emotional neglect involves the failure to address emotional needs, which is also not applicable in this context.

3. While performing CPR, a healthcare provider encounters a client with a large amount of thick chest hair when preparing to use an automated external defibrillator (AED). What is the next appropriate action for the healthcare provider?

Correct answer: C

Rationale: When using an AED, it is crucial for the pads to have good contact with the skin to effectively deliver an electrical shock. While AED pads can adhere to a client's chest even with some hair, thick chest hair can hinder proper current conduction. In such cases, it is recommended to shave the area of the chest where the pads will be applied. Most AED kits include a razor for this purpose. The healthcare provider should act promptly to minimize delays in defibrillation. Option A is incorrect because it may lead to ineffective treatment due to poor pad adherence. Option B is not the best course of action as wiping the chest may not resolve the issue of poor pad contact. Option D is incorrect as not using the AED could jeopardize the client's chance of survival in a cardiac emergency.

4. One of your patients is dependent on a mechanical ventilator for their respiratory needs. The patient cannot breathe on their own. Suddenly, the lights in the patient's room and the entire nursing unit go off. You realize that the electric power has been lost. What is the first thing that you should do for this patient?

Correct answer: B

Rationale: In healthcare facilities, emergency generators are in place in case of power outages. The red outlets in patient rooms are connected to the emergency generator and provide power during such situations. By plugging the ventilator into the red outlet, you ensure that the patient's mechanical ventilation needs are met despite the power loss. Using an Ambu bag or calling the doctor should be secondary actions after ensuring the ventilator is powered correctly. Plugging the ventilator into the blue outlet is incorrect and can result in the ventilator not functioning during a power outage.

5. A patient has suddenly developed shortness of breath and appears to be in significant respiratory distress. After calling the physician and placing the patient on oxygen, which of these actions is the best for the nurse to take when further assessing the patient?

Correct answer: B

Rationale: In a situation where a patient is in significant respiratory distress, bilaterally percussing the thorax to note any differences in percussion tones is a crucial nursing intervention. Percussion provides instant feedback regarding changes in underlying tissue density, which can give important clues about the patient's physical status. This hands-on assessment technique is readily available and can be performed promptly. Counting the patient's respirations, while important, may not provide as much detailed information as percussion. Ordering a chest x-ray and waiting for the results can cause a delay in assessing and addressing the patient's immediate needs. Inspecting the thorax for new masses and bleeding, although relevant, may not offer as much real-time information about the patient's condition compared to percussion.

Similar Questions

You see a sign over Mary Jones' bed when you arrive at 7 am to begin your day shift. The sign says, 'NPO'. Ms. Jones is on a regular diet. The patient asks for milk and some crackers. You _____________.
Which of these statements is true regarding the use of Standard Precautions in the healthcare setting?
Your patient ate an 8-ounce cup of Italian ice. How much will you record on the patient's Intake and Output form in terms of this patient's fluid intake?
A patient is seen in the clinic for reports of "fainting episodes that started last week."? How would the nurse proceed with the examination?
The nurse is reviewing percussion techniques with a new graduate nurse. Which action performed by the graduate nurse while percussing requires the nurse to intervene?

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